Shock-absorber.



H. P` HOOD.

SHOCK ABSOHBEH.

APPLICAUON HLED 1AN.18,1916.

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2 SHEETS gnam/nio@ @f90/ H. I. HUUB.

SHOCK ABSUIIBEH.

APPLICATION FILED IML I8, ISIG. 'Ib @muted Im. 31,1916.

A 2 SHEETS-SHEET Z.

ZEW @@i atl'orumw @MDI-Imam@ HOUSTON I. HOOD, OF BISHOP, CALIFORNIA.

SHOCK-ABSORBER.

Specification :if-Letters Patent.

Patented ct. 31, it@

Application filed January 18, 1916. Serial No. 72,785.

To allie/1.0m t may concern:

Be it known that I, HoUs'roN P. Hoon, a citizen of the United States, residing at Bishop, in the county of Inyo, State of Cali f fornia, have invented certain new and uscful Improvements in Shock-Absorbers; and I do hereby declare the following to be a full, clear, and exact description of the in-, vention, such as will enable others skilled in the art to which it appertains to make and use the saine. f

This invention relates to shock absorbers.

The object of the invention is to provide a shock absorber which will eiiiciently absorb the shock and jars incident to the travel of a vehicle and which embodies an improved construction whereby the device can be readily associated with an ordinary vehicle spring and the tension of which can bc readily adjusted to meet varying conditions.

With the above and other objects in view the invention consists in the details of construction and in the arrangement and combination ot' parts to be hereinafter more fully described and particularly pointed out in the appended claims..

In describing the invention in detail ref erencc will be had to the accompanying drawings wherein like characters ot' reterence denote. corresponding parts in the several views, and in which- Figure 1 is a view in elevation of a vehicle spring having the improved shock absorber associ-ated therewith; Fig. 2, a plan view ofV what is shown in Fig. 1; Fig. 3l, a section on the line SMB or' Fig. 2; Fig. l, a section on the line 4 4 of Fig. 2; Fig. V5. a view in elevation showing a 'modilied Jr'orm of the invention; Fig. a section on the line G-6 of Fig. 5; Fig. 7, a perspective view ot' the tension plate removed, and Fig. 8, a View in elevation of still another modified forni oi" the invention.

Referring to the. drawings 10 indicates a vehicle spring of the usual construction and secured centrally upon the top of said spring through the medium of clamps 11 isa block 12 which is constructed in this instance of rigid material such as wood. The shock absorber proper comprises a leaf spring 13 the central portion of which bears uponfthe top of ,i the block 1.2. The spring 13 tapers toward its outer ends to a knife edge 14, said outer ends of the spring having a wiping engagement with the top of the spring 10. En-

gaged around the springs 10 and 13 between i the block 12 and respective ends of the y spring 13 are tensioning clamps A, each of which comprises arms 15 and 16 and an arm 60 connecting portion 17. The arm* connecting portion oi each clamp A is round so that a relatively small amount of friction betweei same and the spring 13 will be present. Se-

cured to the underside of the spring l() through the medium of the clamps 11 is a plate 1G provided at each end with an eve 17. These eyes 17 register respectively with alined openings 18 in the arms 15 and 1(' of the clamps A and engaged through the openings 18 oi' eachclanip and respective c ves 1T is a securing pin 19. It will be noted that. there is provided a plurality of alined openings in the arms 15 and 16 Where tension of the spring 13.

by the clamps A may be adjusted to vary the,

In the modified form of tlieinven'tion il shown in Figs. 5= G and '7 the'plate'l is dispensed with and a tension bar 20 secured against the under side of the spring .1Q

through the medium of the clamps 11. The;

outer end portions of the bar 20 are inclined away from the spring 10 as at Elend the free ends of these inclined portions are shouldered aS at 9.12. springs 10 and 13 and the bar 20. These" clamps are 'U-shaped and have slidable .on

their arms plates Q4. Threaded on the a'rins otl the clamps 23 are nuts 25 through the manipulationV ot' wliichthe plates 24 are forced against the bar 20 and thel tension of the spring 13 varied.

inthe modified-form of the invention. shown in Fig. S a rigid block for supporting the center of the springs 13 is dispensed with and a sprii'ig 26 substituted therefor.

What is claimed is:-

1. In a shock absorber, the combination with a vehicle spring a supporting member secured to the central portion ofthe upper side of said spring, a leaf spring having its center supported by said member, the ends of said leai' springs departing to a knife edge and engaging the vehicle spring, andv adjustable clips surrounding the vehicle spring and least` spring inwardly of the points of' engagement oi the leaf spring with the ve hicle spring and operating to vary the tension of the leaf spring.

2. In a shock absorber, the combination with a vehicle spring; a supporting member secured to the central poition of the upper side 0f Said Spring, a tension bnr secured t0 und tensin bnr and operating to vary the the cent1-nl politlon of the lower side of said tension 0f the leaf sprng.

spring, the ends of Said tension bnr being In testimony whereof, I nflx my signainclned away from the vehicle spring, a leaf turc. in the presence of two witnesses. spring having its contexsuplxorted by Sad HOUSTOBT P. HOOD. member and its e`nds,n engagment with lllitnesges: the vehicle spring, and adjustable clips sur- WALTER U'r'rlm, rounding the vehicle sprinf. leaf springs, TOM C. THORNTON. 

